Machine for making hollow glass articles.



R. WILLIAMSON. MACHINE FOR MAKING HOLLOW GLASS ARTICLES.

APPLICATION FILED SEPT.23, $912. n v

Y Patented July 0, 1910..

v liv695a 3 SHEETs-sHEET 1.

R'. WILLIAMSON. MACHINE FDR MAKING HOLLOW GLASSARTIGLES.

APPLICATION FILED SEPT.23, 1912. Lm Patented July 20, 1915.

.3 SHEETS-SHEET 2.

R. WILLIAMSON( MACHINE Foa MAKING IIoLLow GLAss ARTICLES;

APPLICATION FILED SEPT.23. 1912.

- Patented July 20, 1915.

3 SHEETS-SHEET 3.

thv

*f vran sfrafras Para fr carro ROMEO WILLIAMSON, OF MILWAUKEE,WISCONSIN, ASSIGNR TO WILLIAMSON MACHINERY COMPANY, OF MILWAUKEE,WISCONSIN.

MACHINE '.FOR MAKING HOLLOW GLASSv ARTICLES. y

T0 all whom it may concern Be it known that I, ROMEO l/VILLIAMsoN, a

'citizen of the United States, and resident of Milwaukee, in the countyof Milwaukee and State ofn Wisconsin, have invented certain clear, andexact description thereof..

v'My invention refers to machines for making hollow glass articles, theprimary object being to provide simple, economical and effective meansfor forming a partisan, the neck portion ofwhich article is `ivmpletedincidental to completion of the par/isbn.

The mechanical elements aresipreferably arranged upon a pair ofrevoluble tables in juXtaposition to each other, whereby a plurality ofmolds can be utilized .as a feeder for a single plunger-carryingmouth-forming one-piece ring, whereby the blow. opening and mouth of thevessel is formed, in which operation the exterior wall of the neck iscompleted. The parison, together with its mold, is thereafter shiftedbetween a simple blowing cup and fluid pressed bottom block, whereby airis admitted to the neck of the bottle to complete the parison and inopposition to the opposing forcel of the bottom block. By utilizingmechanism as above described I .thus dispense with duplicatingcomplicated mechanism, whereby the parison is completed by blowingthrough hollow mandrels or the like. ,In my machine the completedparison is mechanically stripped from the parison mold and automaticallycentered in a finishing mold carried by a finishing table, the finishingmold` being'then centered' under a second finishing blow-cup similar tothat mentioned in connection with whereby the bottle is finforming aparison, ished by the admission of air to fill out the body of thebottle, or other article, the bottom thereof being forced against aresistingA surface of the table that forms a closure for the body end ofthe vessel. In a general way it will be observed that the head of thebottle is formed in the parison mold and entirely within said mold,there being a throat formed in the mold that communicates with the headcavity thereof, whereby a solid ring is inserted to form a bottom,against which the mass of glass is forced and thereby vfinished 7withoutseams, .the

plunger carried by said ring being arranged In the"draw1ngs blowopening. y

.Y Specific objects of: my invention are to p rovlde a hollow one-piecemouth-forming ring that is under fluid pressure control and f carries asolid blow-opening plunger that is 1n telescopic union therewithy' toprovide Specification of Letters Patent. ,Pgenflfed ,ulyg 1915. iApplication led September 23, 1912. Serial No. 721,99@l i i I to enter-the neck ofthe parison to form v y a manually controlled air dischargecup in axial alinement with the mouth ring for 'closing the body end ofthe mold and for admitting air under 'pressure thereto coincident toforming the mouth andblow openi'ng, the air lresistance serving to forcethe f parison down solidly within and fill out the neck portion of saidmold; to provide an axially alined air-controlled mold bottom closingblock in conjunction with-a Vneckblowing cup that is in non-engagementwith the interior portion of the mold, whereby the parison is blown tocompletion in oppd sition to the resisting block; -to provide means forstripping the parison'from the'4 mold preparatory-to the same beingseated' within a finishing mold; to provide av finishing mold whereinthe neck 'portion thereof will hold the head of thel parison insuspension with the mouthpiece or beaded headprojecting above .saidlmold, together with means for centering said parison neck, co-

incident to its being clamped in the finishing mold; to provide ana1r-supply-cup for closing the mold-head in oppositlon to a flat4 bottomface, whereby the body of. the bottle v,

is blown to completion free ofany member being inserted `within the neckthereof, and to provide a simple, economicaland effective; lockingmechanism Vforthe two-piece molds.

With the alOOve and other vobjectsl in view the invention consists incertain peculiarities of construction and combination of parts as setforth -hereinaftervwith reference to the accompanyingdra-wings andsubse.

quently claimed.

diagramamtic sectional elevations of a' machine embodying the featuresof my invention, the sections being indicated by lines 1 1 and 2-2respectively of Fig. 3; Fig. 3, a plan view of the vmachine as it wouldap,- pear in its complete assemblageyFig. 4, an enlarged detailsectional view of the mouthforming ring and its mandrehtogether withlFigures 1 and Q'represent *i i f a-portion of the. mold',l showing therelative' ,l

position of `theparts when the mass of glass is insertedthereinpreparatory to forming a parison; Fig. 5, illustrates a sectional viewalso upon an enlarged scale showing the next step in forming theparison; Fig. 6, a sectional view illustrating the third step in formingthe'parison wherein the samev is completed; Fig. 7, a sectional viewillustratingr the mechanism for stripping the completed parison from theapparatus preparatory to its being inserted into a finishing mold; F ig.8, a sectional view illustrating the parison held in suspension withinthe finishing mold; Fig. 9 illustrates the finished bottle, the moldbeing inserted between a fixed bed and blow-cup, whereby said bottleiscompleted by the admission of airl through the cvup in opposition to thebottom body closuregFigs. 10 and 11 show enlarged plan views'of themold-lo'cking mechanism 'in its closed and open -position respectively,and Fig. 12, a sectional view of the same in its open position.

Referring by characters to the drawings,

1 represents a bench provided with hollow.

hubs 1 for the reception of rotary tables 2, 2, respectively. llachtable is provided with a series of notches 3 f'or the reception ofspring-controlled rods 4, 4', which rods are manually depressed byfoot-treadles 5, 5', the same being carried b y thebench and arereciprocated in suitable supports. vEach of these rodscarry arms thatare in shackle connection with valve-cranks (i, 6', of-two- HPI way airvalves i, l which valves are supplied with air from any suitable sourcethrough pipes 8, 8. The table 2 is provided with a series of two-parthinged parison molds 9 that 'are normally held apart by springs 9,each'of the same being closed by the locking mechanism, which mechanism,as best shown in Figs. 10, 11 and 12, comprises a segmental ear 9 thatis adapted to enter between a pair of ears 11, 11, and engage a bolt 12that is revolubly mounted within the ears 11, 11, the bolt beingprovided with a semicircular portion 12 to permit clearance, whereby thesegmental ear is free to engage the same. p One end of the bolt isprovided with an actuating handle 13, from the head of which is extendeda pin 14 that enters a slot 14 in one end of a link 15, the opposite endof which link is fulcrumed upon that mold-member which carries thesinglesegmental ear 10.

As shown in Fig. 11, when the mold-members are separated by the draw ofthe springs -10 the link 15 and pin 14 of the hand-lever 13 will serveto prevent further spreading of said members and when it is desired toclose said mold' the handlever is turned to the position illustrated inFig. 10, whereby the 'pin 14 will engage the end of the link-slot -andthus imparta draw in opposition to the springs 10. Thus said molds areclosed and'in revolving the hand-lever 13 to the position sh'own in Fig.

which cylinder is suitably secured to the p under side of the bench.()ne end of the cylinder is connected by a branch-pipe 18 to a feed-pipe19, whichpipe also communicates with the valve aforesaid. The formingring 1G is also centrally apertured for the reception oi a solid plug2() that is in telescopic union with the ring, the same being actuated bv a lever 21 that is linked to a stem 22, which stem projects through aside slot in the ring.l

As shown in Fig. 1, the ring is in its operating position and is snuglyfitted within a circularl mouth 23 of the parison mold, which mouthforms a continuation of a bottle-head cavity 23', from which bottleheadcavity the parison mold cavity assumes the shape of' a bottle-neck andfrom thence extends throughout the mold in cylindrical form that is of'less diameter than a finished ply pipe 8 which is connected to saidhollow stem 26, by a flexible pipe section 26. The bench 1 also carriesan'air cylinder 2T having a piston head reciprocatively mounted thereinthat is carried by a channeled piston-rod 27, which rod terminates witha cupped blow head 27, the same being adapted to enter that tableaperture 2 which is alinedV therewith and close the mouth opening 23 ofthe parison mold by engagement of its edges with the under face of saidmold. The upper en d of the air cylinder 27 is connected by abranch-pipe27 to the air feed-pipe 19 and the opposite or lower end oli"said cylinder is similarly connected to the air feed-pipe 19, wherebythe position of the piston and cupped head 27 is controlled. Mounted inaXial alinement with the air cylinder 27 and above the alined parisonmold 9, is a fixed air cylinder 28 having a piston 28 therein,the-piston-rod of which carries a block.29 that is adapted to close theopen body end of the mold, the said cylinder being secured to lthe hubJ1 by a bracket 28". The lower end of the air cylinder 28 is suppliedwith air through a branch-pipe 28 that communicates with the feed-pipe19 and the upper end of said cylinder is supplied with air from thefeedpipe 19 through a branch-pipe 28, these pipes being for convenienceled through the hollow table hub.

The above described mechanism all refers to the parison-formingmechanism and the bottle .is completed upon the table 2, which table isprovided with a series of hinged two-part finishing molds 9 that aresimilar" in construction to those mentioned in connection with theparison-mold with the eX- ception that they are locked byhand-controlled snap-dogs 9 that are carried by one of the mold membersfor engagement with a tooth of the opposite mold member, this lockingmechanism forming no part of my invention.

The neck-cavities of the finishing molds are so' positioned relative tothe height of the latter that when the parison with its completedbottle-neck is inserted therein the head-bead w, of the parison willproject slightly beyond the upper face of the mold as shown, it beingunderstood that the bodycavity is of such dimensions that the pari sonwhen blown out will give the desired shape to the `bottle or othervessel that is to be formed. The iinishing table 2 is provided withslightly raised faces 2 that serve as closures for the bottom of themolds and when the parisomas shown,4 is inserted within the mold, itwill remain in suspension, being clear of the mold closing 2.

As shown in Fig. 7 of the drawings, and from the foregoing description,it is apparent that the parisons are formed inverted and when it isdesired toremove a completed parison from the mold the other incompleteparisons are being formed in certain of. the molds and the table is heldagainst rotation with thatmold which containsl a completed parison inalinement with a reciprocative finger 29. This finger is suitably guidedin the ,bench 1 and connected to a hand-lever 29 and hence to remove theparison the hand-lever is actuatedlwhereby the stripper linger is causedto rise through the table aperture 2 that is alined therewith and enterthe head cavity of the mold, in which position it engages the beadededge of the parison and thus slightly lifts the same from the moldcavity, whereby 'its body end will be 'exposed or'gripping engagement ofla hand-tool A. lThus the parison is eX- tract/ed/from the mold by thehand-tool and being inverted is inserted in the inishlng mold, assumingthe position indicated at B, Fig. -1.

In order to center the parison in the open nishing mold l provide aspring-controlled fulcrumed supporting arm 30, which armis mounted upona bracket 30 that is secured to the hub 1 of the table 2. The end ot'the arm terminates with a pronged mouth 30, into which` the bottle isinserted and the mouth bead vof .said bottle will thus 'rest within thepronged arm mouth' and be ther-eby centered relative to the mold, thesaidl is apparent, by referring to Fig. 3, 1that the.

arm 30 will permit the beaded head of the parison to clear from itspronged mouth, due to the fact that said varm will revolve about itsaxis and vwhen so cleared the arm will -return to its normal alinedposition and be held in this position by a stop-pin 30. After leavingthe centering arm 30 the mold containingl the parison is alined under anair receiving cylinder 31 which -is rigidly secured to the bench-hub 1',the cylindex' being provided with a piston' 31 having a channeledpiston-rod 32 that carries a cuppedI head 32, which cupped l1ead`isadapted to be chucked against the adjacent end ot the mold7 whereby theopen mouth ot' the parison is enveloped. This chucking` operation ot'the cupped head is eii'ected through upward movex-nent of the rod Jf,whereby the table and, mold are centered under the cylinder 31, thechueking being effected through shift of the valve 7 due to itsconnection with the rod i, whereby air from the supply-pipe 8 isadmitted to the upper end of the cylinder 31 through a branch-pipe 31,air being admitted to the opposite` end ot' the cylinder through abranch-pipe 31 that is` also connected to the two-way valve as shown inFig. 2.

Particular attention is called to the fact that in this machine 4only asingle mouthforming ring and mandrel is required and that the blowingoperation both for the parison and completed article is eil'ected byvthe admission ofl air from similar cups and 4f ot' the drawings, vwhenthe moldI A is in the position shown in Fig; 1 and the table centeredbyl kthe rod 4 the upward movement of said rod will, through its con.-nection with valve 7 causeair to be admitted to the lower end ofcylinder 18. The. forming ring 16 is thus forced upward into the moldmouth to close the head cavity therein,

the mandrel being in the position shown in Fig. 1. Thus the ring andmandrel together present an unbroken closure su face for the moldagainst which the gathdl of molten glass will rest, which gather isdeposited in the ybody opening of the mold from above.

The operator` next swings the handle 24 to the exteriorsurface of theneck of the vessel or bottle is formed. The operator now forces the ringplunger 20 upwardl by exerting power upon the handle 21 that is-in linkconnection therewith, the plunger assuming the position shown in Figs.`1 and 5, whereby the molten glass is displaced to form a cavity or blowopening within the neck. The outer face or lip portion of the bead isthus formed by a semi-circular cavity in the face of the ring, wherebythe seam ordinarily formed in said lipped portion is dispensed with andthus the finished bottle at the mouth of the head will prese-nt asmooth, unbroken surface. Pressure upon the foot treadle 5 will nowcause downward movement of the rod l to release the table, whereby themold containing the incomplete parison is shifted to another positionfor completion.. In this downward movement of the rod l the two-wayair-valve 7 is shifted. whereby air is admitted through pipe` 15)', andthe branch-pipe to the upper end of cylinder 1S andl thus the ring iswithdrawn from the mold to a positionwhereby it will clear the underfacepof the table, the solid plunger 20 being retracted to its normalposition by this movement, `together with a retracting spring 21 that isconnected to the hand-lever .21. Presuming that when this shift takesplace, and the incomplete parison in the mold will be brought intoalinement with the air cylinder 28 and air cylinder 27 and hence whenthe rod 4 moves upward to lock the table in the position shown in Fig. 1at the same time that air is admitted under the piston 17 of -cylinder1S it is also admitted to cylinders 28 and 27, whereby their pistons areforced toward each other to thus chuck the lparison mold that ispositioned between the same. In this movement the block /29 is forcedagainst the upper end of the mold to close i the body cavity, while thecupped head 27 is similarly positioned to incase the 'mouth cavity 23.Hence while air pressure will solidly hold the block 29 in position airis admitted through the channeled piston 27 and cupped head 27, wherebythe parison is blown to completion as shown, the air entering throughthe unobstructed blow open- -pressure admitted to valve ring in themouth of the bottle-head, the same' bein/g also clearly illustrated inFig. 6. After this operation the table is again shifted, whereby thecompleted parison is brought into alinement with the stripper finger 29and said stripper-finger is actuated'to lift the bottle to the positionshown in Fig. 4, in which position the gripping tool A manipulated bythe operator is caused to engage the projecting end of the parison,whereby it is lifted from the mold and inserted in the finishing mold,being suspended in the position as shown in Figs. 2 and v8, in whichsuspended position it is held by the arm 30 until such time as the moldis closed and shifted togetherwith the table to the position inalinement with the cylinder 31. In this position the cupped head 32 isforced downward by the air 7 and said air is also directed through thechannel-piston and cupped head, whereby the body of the` bottle is blownto completion, the bottom, which was previously in suspension, beingforced down against the surface 2" of the table, which surface forms abody closure for the finishing mold, the finished bottle being clearlyillustrated inFigs. 2 and 9.

I claim:

1; A machine of the character described comprising a revoluble table, aseries of -parison mol-ds carried upon the table, a reciprocative ringfor I,engagement with the ends of the parison molds, a plunger withinthe ring, independent. actuatingmeans for the plunger, an air-receivingshell in alinement with. the plunger adapted to. close the and disposedbeneath the path .of travel of the parison molds, the cupped head beingprovided with means for admitting air to the mold cavity.

2. A machine of the character -`(ilescribed comprising a revolubletable, a series of parison molds carried uponthe table,a reciprocativesolid ring forengagement with the ends oftheparlson molds, a` plungerwithin the ring, an air-receiving'shell in alinement .with they plunger.adapted to' close the opposite .end fof the inold, a fixed cylinderdisposed above-the path: of travel ofthe i' parison molds, aplunger'actuated block carried by the cylinder for closing the upper,ends of the moldsyand a plunger actuated blow head in.y alinementfwiththe block and witl. means lforvadmtting air to the mold cavity. n

3. A machine ofthe character described .125 .disposedbeneathpthe pathfoftravel of' the f parison mo1d`,`the blow'head being provided isc i endsof the parison molds, a plunger mount-4 ed Within the ring, a manuallycontrolled actuating vmeans for the plunger, an ar-rec'eivingshell inalinement with the plungen adapted to close the opposite endof the mold,a fixed cylinder disposed above the path vof travel ofthe parison molds,a 'fluid controlled plunger actuated block carried by the cylinder forclosing the upper ends' of the molds, and a fluid controlled plungerGopiesof this patent may be obtained for ive dents each, :by addressingthe Commissioner actuated blow head in alinement with the block anddisposed beneath the path of travel of the parison molds, the blow headbeing provided with means for admitting air to the mold cavity. `Inltestimony that I claim the foregoing I have hereunto set my: hand. atMilwaukee in the county' of Milwaukee and State of Wisconsin in thelpresence of two Witnesses.

ROMEO WILLIAMSON.' ,Witnessesz GE. W. YOUNG, M. E. DOWNEY.

of Patents,

Washington, D. C.

